Review: Sony Xperia Ion for AT&T
The Ion comes with the stock Android 2.3 browser on board. Paired with AT&T's HSPA+/LTE networks, I felt it browsed a bit on the slow side. Web sites often took 10 to 30 seconds to load, rather than 5 to 8. With the fast wireless network and fast processors, there really shouldn't be a performance issue with the browser, but it's notably slower than other similarly equipped devices I have on hand. The browser software itself is fine, though I prefer other browsers myself.
Separately, app downloads weren't the speediest, either. Other phones downloaded and updated similar app updates faster than the Ion.
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The Ion offers plenty in the way of user customization. As noted, there are five home screen panels to serve as your digital tapestry. Sony's software provides an extra batch of widgets for the home screens and I particularly like the way you can tweak the lock screen notifications. Beyond these tools, altering wallpapers, themes, ringtones, and all of that stuff is a breeze.